// prog03.cpp put your name here Simple interest#include <iostream> usingnamespacestd;intmain(){floatP,R,T,I;P=1200.00;R=8.5%;T=12;I=P*R*T;cout<<"the interest of a principle of"<<P<<" with an interest rate of "<<R<<" over "<<T<<"months is "<<I<<endl;return0;}